Some escaped during floods and have migrated northward in the Mississippi River and its tributaries.
Failing to seize the opportunity may result in the flow of desperate people northward becoming uncontrollable.
The journey of the Olympic flame northward along the Italian boot has not been smooth.
The President asked his team to continue regular briefings on the storm as it progresses northward.
And so the Election Express rolled onward and northward, into the frigid December night.
Oil companies are reluctant to admit that climate change plays a part in their northward shift.
The plan was originally for the vessel to be towed to Progreso, Mexico, before it drifted northward.
By October 2007, Michaelis said, al Qaeda seemed to make a strategic decision to retreat northward to Mosul.
Two miles into our northward hike, however, the toil of schlepping our packs over loose sand sapped us.
North Korea calls them rehearsals for a northward invasion and says it needs nuclear weapons to defend itself.
Mr Williams argues that the northward sprawl of the Metroplex into empty pastures has outstripped the labour market.
The flames, burning in steep terrain covered by dense brush and timber, were headed northward -- away from residences.
The southwest monsoon system winds its way northward from Kerala, usually covering the entire country by the middle of July.
It could be that he took some calculated chances and was caught by the rapid northward motion of the tornado.
Dominion provides power mainly to Virginia and northward through New York state, as well as to parts of the Midwest.
The fish have migrated northward in the Mississippi River and many tributaries since escaping from Deep South ponds in the 1970s.
The conversation that began on Wall Street on September 17 has swept northward to Boston, and inspired a powerful national movement.
Magnetic Northward attracts serious punters, with an earnest bunch of experts laid on to herd them around and lecture to them.
The fall of Gadhafi in Libya gave both men the opportunity to take their operations northward into Libya from their sub-Saharan strongholds.
Instead of following the northward Gulf Stream they headed further out to sea and went into Chesapeake Bay on a northwest tack.
That is partly because some Americans fear the violence is starting to spread northward, although such worries look exaggerated (see article).
In the medium-term, though, it would encourage the latter finally to pass needed reforms in Mexico and not shift the blame northward.
That might help to reduce the steady northward stream of illegal immigrants.
ECONOMIST: America and its neighbours discover a common interest
Cultivation spread northward, probably through Mexico into the American Southwest, then eastward.
For some fishermen in the northern seas, climate change seemed like a total win: as oceans warmed, fish moved northward, meaning a bigger catch.
As he explains it, the gradual movement of coyotes northward plus the rise of synthetic fabrics have combined to make sheep-raising an endangered occupation in these parts.
This has been caused by cold La Nina temperatures in the Eastern Tropical Pacific that pushed the jet stream northward, shifting moisture and rainfall eastward.
He explained that change in the direction of the current in the Mozambique Channel was a result of the slow northward movement of Africa and Madagascar.
The Metro-North main lines the Hudson, Harlem, and New Haven run northward from New York City's Grand Central Terminal into suburban New York and Connecticut.
New York still has its neck craned northward at the NBA elite, and it's hard to imagine the team (as presently constituted) wresting a title away from the LeBron-era Heat.
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